wget -qO - https://mirrors.aliyun.com/kubernetes/apt/doc/apt-key.gpg | gpg --dearmor > kubernetes-mirrors-aliyun.gpg
install -D -m 0644 kubernetes-mirrors-aliyun.gpg /etc/apt/trusted.gpg.d/

add-apt-repository "deb https://mirrors.aliyun.com/kubernetes/apt/ kubernetes-xenial main"
apt-get update
apt-get install -y kubelet kubeadm kubectl

kubeadm version
kubelet --version
kubectl version


cat /etc/apt/sources.list
ls /etc/apt/sources.list.d/